NDLI: An innovative implementation for directory-based cache coherence in shared memory multiprocessors

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An innovative implementation for directory-based cache coherence in shared memory multiprocessors

Content Provider	ACM Digital Library
Author	Zhu, Ming Shi, Weisong Hu, Weiwu
Abstract	Directory-based cache coherence protocol is accepted as the common technique in large scale shared memory multiprocessors because of its scalability. Although it was extensively studied in the past, however, the memory overhead and long miss penalty entailed by this protocol are the major obstacles to scale for large scale multiprocessors. On the other hand, the ever-increasing cache line size makes the false sharing problem more serious than before, which will lead to high miss rate. Based on the scope consistency, we propose a lock-specific home-based cache coherence protocol. In this new cache coherence protocol, all directory memory overhead are eleminated completely and false sharing problem and high miss rate will be sloved greatly at the cost of small write notice buffer in each processor.
Starting Page	2
Ending Page	9
Page Count	8
File Format	PDF
ISSN	01635964
DOI	10.1145/271014.271017
Journal	ACM SIGARCH Computer Architecture News (CARN)
Volume Number	25
Issue Number	5
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	1981-04-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Directory-based cache coherence protocol False sharing Memory overhead Scope consistency
Content Type	Text
Resource Type	Article

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